I have one ice ducer set up with an HDS 5 and wanted to convert 2 more using the same PTI-WBL ice ducer. It works great to see the bottom for the fishing that I'm doing, much better than vexilar. Currently, have two PTI-WBL ice ducer orders in process both backordered. Would love to know what blue connector converter is needed if I decided to buy the 9 pin ice ducer?